Dreaming of a backpack means there is something holding you back from advancing in your career or relationships. It is time to open up to backpack to see what is inside that makes it so heavy. A big backpack will not allow you to move forward with your future plans unless you make an effort to lighten up the load.
Unzip the backpack and empty it out. You may be facing multiple issues in your life, take care of them one by one.